An integrated neutron tube radiation shield

Abstract

The utility model discloses an integrated neutron tube ray shield case, including integrated frame and shield case body, one end of shield case body is connected with shield front cover, and the middle position of shield front cover one end is installed with emission head. The utility model runs, and the user can power on semiconductor refrigeration piece, and make its embedding refrigeration surface in the inside of cold water box to carry out refrigeration treatment to cooling liquid, and at the same time, the exposed heating surface of semiconductor refrigeration piece will carry out heat dissipation cooling treatment under the action of fan, and further optimize the refrigeration effect, in addition, the water pump and solenoid valve start, can drive low temperature cooling liquid to circulate in the heat dissipation pipe fitting inside the shield case body outer wall constantly, and then through the heat conduction effect, the heat on the device is taken away, and then through the active cooling structure, realizes high -efficient cooling protection, solves the serious problem of the heat generation of neutron tube when using for a long time.

Description

Technical Field

[0001] This utility model relates to the field of neutron tube radiation shielding structure technology, specifically an integrated neutron tube radiation shield. Background Technology

[0002] Neutron tubes, or neutron generators, produce high-energy neutron radiation when they are working. These neutrons can harm human health. For safety reasons, a neutron tube radiation shield needs to be installed on the outer wall of the neutron tube to prevent neutron leakage from coming into contact with users and causing harm.

[0003] Current neutron tube radiation shields are often directly encapsulated on the outer wall of the neutron tube to achieve shielding protection. However, they still require users to manually operate the emission position. They cannot achieve contactless adjustment and operation of the emission position through integrated three-dimensional drive structure and laser positioning. Therefore, we propose a new type of integrated neutron tube radiation shield to improve the protection and safety of operators. Utility Model Content

[0004] The purpose of this invention is to provide an integrated neutron tube radiation shield to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated neutron tube radiation shield, comprising an integrated frame and a shield body, one end of which is threadedly connected to a shield front cover, a transmitter head is installed at the middle position of one end of the shield front cover, and a laser positioner matching the transmitter head is installed on the shield front cover, the integrated frame is installed at the bottom of the shield body, heat dissipation pipes are uniformly fixed on the outer side wall of the shield body, horizontal longitudinal calibration housings are provided on both sides below the integrated frame, and horizontal transverse calibration housings are slidably connected between adjacent horizontal longitudinal calibration housings, a drive seat is slidably connected to the top of the horizontal transverse calibration housings, and a telescopic cylinder for vertical calibration connected to the integrated frame is fixed inside the drive seat, and a self-locking motor and a ball screw nut mechanism are installed inside both the horizontal longitudinal calibration housing and the horizontal transverse calibration housing.

[0006] Preferably, the outer walls of both the shielding cover and the shielding front cover are provided with a stainless steel supporting outer layer, which can provide mechanical support and auxiliary shielding.

[0007] Preferably, the inner walls of both the shielding cover and the shielding front cover are provided with a polyethylene moderation layer, which can be used to slow down fast neutrons into thermal neutrons.

[0008] Preferably, the interior of the shielding cover and the sidewall of the shielding front cover is provided with a boron carbide absorbing layer to absorb thermal neutrons.

[0009] Preferably, one end of both the transmitter head and the shielding front cover is provided with a threaded assembly tube, and the transmitter head, the shielding front cover, and the shielding cover all constitute a disassembly and installation structure.

[0010] Preferably, both sides of the top of the integrated frame are evenly provided with assembly arms that match the shielding cover, and screws are evenly provided between the assembly arms and the shielding cover.

[0011] Preferably, both the water pump and the solenoid valve are equipped with flexible installation hoses that are spirally connected to the heat dissipation pipes, making it easy to disassemble and maintain the heat dissipation pipe structure formed by the heat dissipation pipes and the water pump and solenoid valve.

[0012] Preferably, the heat dissipation pipes are arranged at equal angles on the outer wall of the shielding cover, and connecting pipes are evenly provided on the heat dissipation pipes.

[0013] Preferably, a cold water box is installed inside the integrated frame, and a semiconductor cooling chip and a fan are sequentially installed on the cold water box.

[0014] Preferably, a water pump and a solenoid valve connected to the heat dissipation pipes are respectively installed at both ends of the cold water box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The integrated neutron tube radiation shield is equipped with a horizontal and vertical calibration housing, which optimizes the performance of the device. Users can control the self-locking motor inside the horizontal and vertical calibration housing to start, and with the transmission of the ball screw nut mechanism, drive the horizontal horizontal calibration housing and the integrated frame above the horizontal and vertical calibration housing to move horizontally and vertically automatically. Users can also control the self-locking motor inside the horizontal horizontal calibration housing to start, and with the transmission of the ball screw nut mechanism, drive the drive seat and the integrated frame to move horizontally and horizontally automatically. Users can also start the vertical calibration telescopic cylinder inside the drive seat to drive the integrated frame to move vertically automatically. This allows the device to automatically control the integrated frame and the shielding front cover and the emitter head to adjust and calibrate automatically in three dimensions. With the laser positioning function of the laser positioner installed on the shielding front cover and matching the emitter head, users can achieve non-contact calibration and control of the neutron emission position on the corresponding product. By integrating this non-contact calibration structure, the shielding protection of the device for the staff is improved.

[0017] (2) The integrated neutron tube radiation shield is equipped with a cold water box, so that when the device is actually operated, the user can power on the semiconductor cooling chip and make the cooling surface embedded in the cold water box cool the coolant. At the same time, the exposed heating surface of the semiconductor cooling chip will be cooled down by the fan, which further optimizes the cooling effect. In addition, the water pump and solenoid valve can drive the low temperature coolant to circulate continuously inside the heat dissipation pipes arranged on the outer wall of the shield. The heat on the device is carried away by the heat conduction effect. Thus, through the active cooling structure, efficient cooling protection is achieved, which solves the problem of serious heat generation when the neutron tube is used for a long time.

[0018] (3) The integrated neutron tube radiation shield has optimized its structure by installing a shielding front cover, etc. The stainless steel support outer layer set on the outer side wall of the shielding body and the shielding front cover can provide mechanical support and auxiliary shielding. The polyethylene moderation layer set on the inner side wall of the shielding body and the shielding front cover can be used to slow down fast neutrons into thermal neutrons. The boron carbide absorption layer set on the middle layer of the shielding body and the shielding front cover can absorb thermal neutrons. Thus, the shielding protection effect of the neutron tube is optimized through the multi-level shielding protection structure. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present invention;

[0020] Figure 2 This is a side view of the structure of this utility model;

[0021] Figure 3 This is a front view structural diagram of the heat dissipation pipe component of this utility model;

[0022] Figure 4 This is a front view structural diagram of the shielding front cover of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the side wall of the shielding cover of this utility model.

[0024] In the diagram: 1. Self-locking motor; 2. Integrated frame; 3. Shielding enclosure; 4. Shielding front cover; 5. Transmitter head; 6. Water pump; 7. Telescopic cylinder for vertical calibration; 8. Drive base; 9. Horizontal calibration housing; 10. Horizontal longitudinal calibration housing; 11. Ball screw nut mechanism; 12. Heat dissipation pipe; 13. Laser positioner; 14. Assembly arm; 15. Connecting pipe; 16. Installation hose; 17. Semiconductor cooling chip; 18. Fan; 19. Cold water box; 20. Solenoid valve; 21. Threaded assembly pipe; 22. Polyethylene moderating layer; 23. Stainless steel support outer layer; 24. Boron carbide absorption layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figure 1-5 An embodiment of this utility model is provided: an integrated neutron tube radiation shield, including an integrated frame 2 and a shield body 3, with a shield front cover 4 threadedly connected to one end of the shield body 3;

[0027] A transmitter 5 is installed at the middle position of one end of the shielding front cover 4, and a laser positioner 13 matching the transmitter 5 is installed on the shielding front cover 4.

[0028] The integrated frame 2 is installed at the bottom of the shielding cover 3. Heat dissipation pipes 12 are evenly fixed on the outer side wall of the shielding cover 3. A cold water box 19 is installed inside the integrated frame 2. A semiconductor cooling chip 17 and a fan 18 are installed on the cold water box 19 in sequence. A water pump 6 and a solenoid valve 20 connected to the heat dissipation pipes 12 are installed at both ends of the cold water box 19 respectively.

[0029] In use, the user can power on the semiconductor cooling chip 17, causing the cooling surface embedded inside the cold water box 19 to cool the coolant. At the same time, the exposed heating surface of the semiconductor cooling chip 17 will be cooled by the fan 18, further optimizing the cooling effect. In addition, the water pump 6 and the solenoid valve 20 are started, which can drive the low temperature coolant to circulate continuously inside the heat dissipation pipes 12 arranged on the outer wall of the shield 3, and then carry away the heat on the device through heat conduction. Thus, through the active cooling structure, efficient cooling protection is achieved, solving the problem of severe heat generation caused by long-term use of the neutron tube.

[0030] Both sides of the integrated frame 2 are provided with horizontal longitudinal calibration housings 10. A horizontal transverse calibration housing 9 is slidably connected between adjacent horizontal longitudinal calibration housings 10. A drive seat 8 is slidably connected to the top of the horizontal transverse calibration housing 9. A vertical calibration telescopic cylinder 7 connected to the integrated frame 2 is fixed inside the drive seat 8. A self-locking motor 1 and a ball screw nut mechanism 11 are installed inside both the horizontal longitudinal calibration housing 10 and the horizontal transverse calibration housing 9.

[0031] In use, the user can control the self-locking motor 1 inside the horizontal longitudinal calibration housing 10 to start, and with the transmission action of the ball screw nut mechanism 11, drive the horizontal transverse calibration housing 9 and the integrated frame 2 above the horizontal longitudinal calibration housing 10 to move automatically horizontally and longitudinally. The user can also control the self-locking motor 1 inside the horizontal transverse calibration housing 9 to start, and with the transmission action of the ball screw nut mechanism 11, drive the drive seat 8 and the integrated frame 2 to move automatically horizontally and laterally. The user can also activate the vertical calibration telescopic cylinder 7 inside the drive seat 8 to drive the integrated frame 2 to move automatically vertically. This allows the device to automatically control the integrated frame 2 and the shielding front cover 4 and the transmitter head 5 to perform automatic and flexible adjustment and calibration in three dimensions. With the laser positioning action of the laser positioner 13 installed on the shielding front cover 4 that matches the transmitter head 5, the user can achieve non-contact calibration and control of the neutron emission position on the corresponding product. By integrating this non-contact calibration structure, the device's shielding protection for personnel is improved.

[0032] Both the outer walls of the shielding cover 3 and the shielding front cover 4 are provided with stainless steel support outer layers 23, which can provide mechanical support and auxiliary shielding.

[0033] Both the inner walls of the shielding cover 3 and the shielding front cover 4 are provided with a polyethylene moderation layer 22, which can be used to slow down fast neutrons into thermal neutrons.

[0034] The interior of the shielding cover 3 and the shielding front cover 4 is provided with a boron carbide absorption layer 24 to absorb thermal neutrons.

[0035] Both the transmitter head 5 and the shielding front cover 4 are provided with threaded assembly tubes 21 at one end. The transmitter head 5, the shielding front cover 4, the shielding front cover 4 and the shielding cover 3 all constitute a disassembly and installation structure.

[0036] Both sides of the top of the integrated frame 2 are evenly provided with assembly arms 14 that match the shielding cover 3, and screws are evenly provided between the assembly arms 14 and the shielding cover 3.

[0037] Both the water pump 6 and the solenoid valve 20 are equipped with a flexible installation hose 16 that is spirally connected to the heat dissipation pipe 12, so as to facilitate the disassembly and maintenance of the heat dissipation pipe structure formed by the heat dissipation pipe 12 and the water pump 6 and the solenoid valve 20.

[0038] The heat dissipation pipes 12 are arranged at equal angles on the outer wall of the shielding cover 3, and the heat dissipation pipes 12 are evenly provided with connecting pipes 15.

[0039] In use, the user can control the self-locking motor 1 inside the horizontal longitudinal calibration housing 10 to start, and with the transmission action of the ball screw nut mechanism 11, drive the horizontal transverse calibration housing 9 and the integrated frame 2 above the horizontal longitudinal calibration housing 10 to move automatically horizontally and longitudinally. The user can also control the self-locking motor 1 inside the horizontal transverse calibration housing 9 to start, and with the transmission action of the ball screw nut mechanism 11, drive the drive seat 8 and the integrated frame 2 to move automatically horizontally and transversely. Furthermore, the user can activate the vertical calibration telescopic cylinder 7 inside the drive seat 8 to drive the integrated frame 2 to move automatically vertically. This allows the device to automatically control the integrated frame 2 and its shielding front cover 4 and transmitter 5 to perform automated and flexible adjustment and calibration in three dimensions. Combined with the laser positioning function of the laser positioner 13 installed on the shielding front cover 4 and matching the transmitter 5, the user can achieve non-contact calibration and control of the neutron emission position on the corresponding product. By integrating this non-contact calibration structure, the device's shielding protection for personnel is improved. Simultaneously, the user can... The semiconductor cooling chip 17 is energized and embedded inside the cold water box 19 to cool the coolant. At the same time, the exposed heat-generating surface of the semiconductor cooling chip 17 is cooled by the fan 18, further optimizing the cooling effect. In addition, the water pump 6 and the solenoid valve 20 are activated, which can drive the low-temperature coolant to circulate continuously inside the heat dissipation pipes 12 arranged on the outer wall of the shielding cover 3. The heat on the device is carried away by the heat conduction. Thus, through the active cooling structure, efficient cooling protection is achieved, which solves the problem of severe heat generation caused by long-term use of the neutron tube. In addition, the stainless steel support outer layer 23 set on the outer wall of the shielding cover 3 and the shielding front cover 4 can provide mechanical support and auxiliary shielding. The polyethylene moderation layer 22 set on the inner wall of the shielding cover 3 and the shielding front cover 4 can be used to slow down fast neutrons into thermal neutrons. The boron carbide absorption layer 24 set in the middle layer of the side wall of the shielding cover 3 and the shielding front cover 4 can absorb thermal neutrons. Thus, through the multi-level shielding protection structure, the shielding protection effect of the neutron tube is optimized.

Claims

1. An integrated neutron tube radiation shield, characterized in that, It includes an integrated frame (2) and a shielding cover (3). One end of the shielding cover (3) is threadedly connected to a shielding front cover (4). A transmitter (5) is installed at the middle position of one end of the shielding front cover (4), and a laser positioner (13) matching the transmitter (5) is installed on the shielding front cover (4). The integrated frame (2) is installed at the bottom of the shielding cover (3). Heat dissipation pipes (12) are evenly fixed on the outer side wall of the shielding cover (3). A cold water box (19) is installed inside the integrated frame (2). A semiconductor cooling chip (17) and a fan (18) are installed on the cold water box (19) in sequence. A water pump (6) and a solenoid valve (20) connected to the heat dissipation pipes (12) are installed at both ends of the cold water box (19). Both sides below the integrated frame (2) are provided with horizontal longitudinal calibration housings (10), and horizontal transverse calibration housings (9) are slidably connected between adjacent horizontal longitudinal calibration housings (10). A drive seat (8) is slidably connected to the top of the horizontal transverse calibration housing (9). A telescopic cylinder (7) for vertical calibration connected to the integrated frame (2) is fixed inside the drive seat (8). A self-locking motor (1) and a ball screw nut mechanism (11) are installed inside both the horizontal longitudinal calibration housing (10) and the horizontal transverse calibration housing (9).

2. The integrated neutron tube radiation shield according to claim 1, characterized in that: The outer walls of the shielding cover (3) and the shielding front cover (4) are provided with stainless steel support outer layer (23).

3. The integrated neutron tube radiation shield according to claim 1, characterized in that: The inner walls of the shielding cover (3) and the shielding front cover (4) are provided with a polyethylene slowing layer (22).

4. An integrated neutron tube radiation shield according to claim 1, characterized in that: The shielding cover (3) and the shielding front cover (4) have boron carbide absorption layers (24) inside their side walls.

5. An integrated neutron tube radiation shield according to claim 1, characterized in that: The transmitter (5) and the shielding front cover (4) are each provided with a threaded assembly tube (21) at one end. The transmitter (5), the shielding front cover (4), the shielding front cover (4), and the shielding cover (3) all constitute a disassembly and installation structure.

6. An integrated neutron tube radiation shield according to claim 1, characterized in that: The top of the integrated frame (2) is evenly provided with assembly arms (14) that match the shielding cover (3) on both sides, and screws are evenly provided between the assembly arms (14) and the shielding cover (3).

7. An integrated neutron tube radiation shield according to claim 1, characterized in that: Both the water pump (6) and the solenoid valve (20) are equipped with installation hoses (16) that are spirally connected to the heat dissipation pipe (12).

8. An integrated neutron tube radiation shield according to claim 1, characterized in that: The heat dissipation pipes (12) are arranged at equal angles on the outer wall of the shielding cover (3), and connecting pipes (15) are evenly arranged on the heat dissipation pipes (12).

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